那时，他怎么一天记住了三百个单词的？的翻译：At that time, how he remembered 300 words in a day? 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

At that time, he remembered how one day three hundred words?

At that time, how he remembered 300 words in a day?

At that time, how has he one day remembered 300 words?

At the time, he remembered how the 300 words a day?

At that time, how he remembered 300 words in a day?